<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120">
                <!-- <XtxCheckBox v-model="isAll">全选</XtxCheckBox> -->
                <!-- 修改全选 -->
                <XtxCheckBox :modelValue="isAll" @update:modelValue="allSel"
                  >全选</XtxCheckBox
                >
              </th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="i in validList" :key="i.skuId">
              <!--  单个商品的复选框 , 刷新后就没有了, 因为vuex的数据不能通过v-model直接修改, 应写为完整写法-->
              <!-- <td><XtxCheckBox v-model="i.selected" /></td> -->
              <!-- $event是子传父的数据 布尔值,true为选中, false为未选中-->
              <td>
                <XtxCheckBox
                  :modelValue="i.selected"
                  @update:modelValue="singleSel(i, $event)"
                />
              </td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/detail/${i.id}`"
                    ><img :src="i.picture" alt=""
                  /></RouterLink>
                  <div>
                    <p class="name ellipsis">
                      {{ i.name }}
                    </p>
                    <!-- 选择规格组件 -->
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ i.nowPrice }}</p>
                <p>
                  比加入时降价
                  <span class="red"
                    >&yen;{{ (i.price - i.nowPrice).toFixed(2) }}</span
                  >
                </p>
              </td>
              <td class="tc">
                <!-- 商品数量 -->
                <!-- <XtxNumbox :isShow="false" v-model="i.count" /> -->
                <XtxNumbox
                  :isShow="false"
                  :modelValue="i.count"
                  @update:modelValue="numIpt(i, $event)"
                />
              </td>
              <!-- 小计 -->
              <td class="tc">
                <p class="f16 red">
                  &yen;{{ (i.count * i.nowPrice).toFixed(2) }}
                </p>
              </td>
              <td class="tc">
                <p>
                  <a class="green" href="javascript:;" @click="delGood(i)"
                    >删除</a
                  >
                </p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          共 {{ validList.length }} 件商品，已选择
          {{ validSel.length }} 件，商品合计：
          <span class="red">¥{{ validSelPrice.toFixed(2) }}</span>
        </div>
        <div class="total">
          <XtxButton type="primary" @click="toOrder">下单结算</XtxButton>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { mapGetters, useStore } from 'vuex'
import msg from '@/components/Message'
import { useRouter } from 'vue-router'
export default {
  name: 'XtxCartPage',
  computed: {
    ...mapGetters('cart', ['validList', 'validSel', 'validSelPrice', 'isAll'])
  },
  setup () {
    const store = useStore()
    // 修改单个商品的复选框
    const singleSel = (good, sel) => {
      // console.log(sel)
      store.dispatch('cart/singleCheckAction', { good, sel })
    }
    // 修改全选
    const allSel = (sel) => {
      // console.log(sel)
      store.dispatch('cart/allCheckAction', sel)
    }
    // 删除
    const delGood = async (good) => {
      const res = store.dispatch('cart/delAction', good)
      // 删除成功后的提醒, axios执行完返回的是promise对象需要then
      const message = await res
      // console.log(message)
      msg({ type: 'success', text: message })
    }
    // 商品数量
    const numIpt = (good, num) => {
      // 当前修改后的数量
      console.log(num)
      store.dispatch('cart/numChangeAction', { good, num })
    }
    // 跳转结算页面
    const router = useRouter()
    const toOrder = () => {
      // 1. 判断是否登录  token
      // 2. 判断是否选中有效商品  数量不能为零
      // console.log(store)
      if (!store.state.user.profile.token) {
        return msg({ text: '请先登录' })
      }
      if (!store.getters['cart/validSel'].length) {
        return msg({ text: '请至少选择一件商品' })
      }
      router.push('/order')
    }
    return { singleSel, allSel, delGood, numIpt, toOrder }
  }
}
</script>
<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor;
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,
      td {
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>
